The whole court was amused by the story, but dismayed at the punishment my lord inflicted upon his lady. Anthony Hamilton declares that in England "they looked with astonishment upon a man who could be so uncivil as to be jealous of his wife; and in the city of London it was a prodigy, till that time unknown, to see a husband have recourse to violent means to prevent what jealousy fears, and what it always deserves." He adds, they endeavoured to excuse my lord by laying all the blame on his bad education, which made "all the mothers vow to God that none of their sons should ever set a foot in Italy, lest they should bring back with them that infamous custom of laying restraint upon their wives."By the departure of Lady Chesterfield the court lost one of its most brilliant ornaments forever, for the unhappy countess never again returned to the gay scene of her adventures. For three long years she endured banishment at Bretby in Derbyshire, and then died, it was believed, from the effects of poison. For my lord, never having his suspicions of her intrigue cleared, insisted on her taking the sacrament by way of pledging her innocence; on which occasion he, in league with his chaplain, mixed poison in the sacred wine, as result of which she died.
This shocking story gained credence not only with the public, but with members of his own family; inasmuch as his daughter-in-law, Lady Gertrude Stanhope, after she had quarrelled with him, would, when she sat at his table, drink only of such wine and water as a trusty servant of hers procured.
This intrigue of the duke had given much uneasiness to his duchess, who had complained to the king and to her father, and had, moreover, set a watch upon the movements of his royal highness. But such measures did not avail to make him a faithful husband, and no sooner was Lady Chesterfield removed from his sight, than Lady Denham took her place in his affections. This latter mentioned gentlewoman was daughter of a valiant baronet, Sir William Brooke, and niece to a worthless peer, the Earl of Bristol. The earl had, on the king's restoration, cherished ambitious schemes to obtain the merry monarch's favour; for which purpose he sought to commend himself by ministering to the royal pleasures.
Accordingly he entertained the king as became a loyal gentleman, giving him luxurious banquets and agreeable suppers, to which, by way of adding to his majesty's greater satisfaction, the noble host invited his nieces, Mistress Brooke and her sister. The wily earl had, indeed, conceived a plan the better to forward his interests with the king, and was desirous one of these gentlewomen should subdue his majesty's heart, and become his mistress. Margaret Brooke, the elder of the maidens, was at this time in her eighteenth year, and was in the full flower of such loveliness as was presented by a fair complexion, light brown hair, and dark grey eyes. The merry monarch's susceptible heart was soon won by her beauty; the charming lady's amorous disposition was speedily conquered by his gallantry, and nothing prevented her becoming his mistress save Lady Castlemaine's jealousy.
This, however, proved an insurmountable obstacle; for the countess, hearing rumours of the pleasures which were enjoyed at my Lord Bristol's table, insisted on attending the king thither, and soon gave his gracious majesty an intimation he dared not disregard--that she would not suffer Miss Brooke as a rival.
Margaret Brooke was grievously disappointed; but the Duke of York beginning his attentions at the point where his majesty discontinued them, she was soon consoled for loss of the monarch's affection by the ardour of his brother's love. But a short time after, probably foreseeing the ambiguous position in which she stood, she forsook her lover, and accepted a husband in the person of Sir John Denham.